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What Java ORM do you prefer, and why? [closed]
...e SQL queries, and shift a lot of my processing into the database.
So consider just using the JDBC package.
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How to add text inside the doughnut chart using Chart.js?
How to render Text inside the doughnut chart, I am using ChartJs .
14 Answers
14
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How do I prevent the padding property from changing width or height in CSS?
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Many of you should consider the width: auto trick below. Works across browsers, less code, etc.
– Ryan Shillington
Oct 3 '13 at 21:07
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How do you represent a JSON array of strings?
This is all you need for valid JSON, right?
4 Answers
4
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How to make a function wait until a callback has been called using node.js
...working with event driven systems like node, your function should accept a callback parameter that will be invoked when then computation is complete. The caller should not wait for the value to be "returned" in the normal sense, but rather send the routine that will handle the resulting value:
func...
Clojure differences between Ref, Var, Agent, Atom, with examples
...pdate, this is a very common case.
Synchronous access is used when the call is expected to wait until all Identities have settled before continuing.
Asynchronous access is "fire and forget" and let the Identity reach its new state in its own time.
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Why is the Java main method static?
...ic because otherwise there would be ambiguity: which constructor should be called? Especially if your class looks like this:
public class JavaClass{
protected JavaClass(int x){}
public void main(String[] args){
}
}
Should the JVM call new JavaClass(int)? What should it pass for x?
If not...
How to find a table having a specific column in postgresql
...t c.relname
from pg_class as c
inner join pg_attribute as a on a.attrelid = c.oid
where a.attname = <column name> and c.relkind = 'r'
sql fiddle demo
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java.lang.IllegalStateException: Cannot (forward | sendRedirect | create session) after response has
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A common misunderstanding among starters is that they think that the call of a forward(), sendRedirect(), or sendError() would magically exit and "jump" out of the method block, hereby ignoring the remnant of the code. For example:
protected void doXxx() {
if (someCondition) {
send...
How to detect when an Android app goes to the background and come back to the foreground
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The onPause() and onResume() methods are called when the application is brought to the background and into the foreground again. However, they are also called when the application is started for the first time and before it is killed. You can read more in Activity.
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